A bamboo chopstick product production substandard product screening device

Abstract

This utility model belongs to the field of bamboo chopsticks production technology, and specifically relates to a defective product screening device for bamboo chopsticks production. It includes a workbench, which comprises an operating table and a mounting frame fixedly installed above the operating table. A placement groove extending along the width direction is formed at the center of the top of the operating table, and a collection box is placed on the inner side of the bottom of the operating table. A material-blocking mechanism includes a baffle hinged to the bottom surface of the operating table and a first electric telescopic rod hinged to the inner left wall of the operating table. The telescopic end of the first electric telescopic rod is hinged to the bottom surface of the baffle. The length and width of the baffle are both greater than the length and width of the placement groove. This utility model can achieve a rapid and high-frequency kneading effect, resulting in faster arrangement of bamboo chopsticks in rows, which helps improve the speed and efficiency of defective product screening.

Description

Technical Field

[0001] This utility model belongs to the field of bamboo chopsticks production technology, and in particular relates to a defective product screening device for bamboo chopsticks production. Background Technology

[0002] Bamboo chopsticks are tableware made from bamboo, mainly including disposable bamboo chopsticks and everyday bamboo chopsticks. During the production of bamboo chopsticks, defective products often occur due to external factors. To ensure product quality, it is necessary to screen out defective bamboo chopsticks.

[0003] Chinese utility model patent CN222469810U discloses a defective product screening device for bamboo chopsticks production. This device uses a clamping mechanism to hold bamboo chopsticks in place. Gears and racks drive a moving plate, causing the chopsticks to be compressed into rows by the back-and-forth movement of the clamping plates on both sides. When the sliding plate is removed, the thinner chopsticks automatically fall out, avoiding the tedious process of placing chopsticks one by one and improving the convenience and efficiency of defective product screening. However, this device relies on the reciprocating rotation of gears and the two racks driving the clamping plates to rub the chopsticks. This requires frequent forward and reverse rotation of the motor, increasing the load and causing severe wear. Furthermore, the rubbing frequency is low, resulting in slow row arrangement of the chopsticks and affecting screening efficiency. The device is also inconvenient for screening shorter defective chopsticks.

[0004] Therefore, there is an urgent need to improve the existing defective product screening device used in the production of bamboo chopsticks, and to provide a defective product screening device for bamboo chopsticks that is convenient for screening out defective bamboo chopsticks with length defects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a defective product screening device for bamboo chopstick production that is reasonably designed, simple in structure, highly efficient in screening, and convenient for screening defective bamboo chopsticks with length defects, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A defective product screening device for bamboo chopsticks production, comprising: The workbench includes an operating table and a mounting bracket fixedly installed above the operating table. A placement groove extending along the width direction is opened at the center of the top of the operating table, and a collection box is placed on the inner side of the bottom of the operating table. The material blocking mechanism includes a baffle hinged to the bottom end face of the operating table, and a first electric telescopic rod hinged to the inner wall of the left side of the operating table. The telescopic end of the first electric telescopic rod is hinged to the bottom end face of the baffle. The length and width of the baffle are both greater than the length and width of the placement groove. Two slide rails are fixed to the upper surface of the operating table and are arranged symmetrically about the placement slot. Each slide rail is equipped with a slider, and a side clamping mechanism is installed above the slider. The drive mechanism is located on the top of the mounting frame. The two sets of side clamping mechanisms are linked by the drive mechanism and their sliding directions are always opposite to each other. The controller is fixedly installed on the front right side of the mounting frame.

[0007] Preferably, the side clamping mechanism includes a support plate, a vertical rod, a second electric telescopic rod, and a side clamping plate. The support plate is fixed to the top of the slider, the vertical rod is fixed to the middle of the top of the support plate, the second electric telescopic rod is fixedly installed in the middle of the support plate, and the telescopic end of the second electric telescopic rod is fixedly connected to the side clamping plate.

[0008] Preferably, the top of the mounting bracket is provided with through slots symmetrically arranged on the left and right sides, and a limit rod is fixed in each of the two through slots. The top ends of the two vertical rods are respectively guided and slidably located in the two through slots and slidably sleeved on the outside of the corresponding limit rods.

[0009] Preferably, the mounting bracket also includes a top clamping mechanism, which comprises two third electric telescopic rods and a top clamping plate. The two third electric telescopic rods are fixed to the top of the mounting bracket and are arranged symmetrically front to back. The top clamping plate is located below the top of the mounting bracket, and the telescopic ends of the two third electric telescopic rods are respectively fixedly connected to the upper surfaces of the front and rear ends of the top clamping plate.

[0010] Preferably, the drive mechanism includes a drive motor, a worm gear, bearing seats, a horizontal shaft, a worm wheel, and circular blocks. The drive motor is fixedly mounted on the top of the mounting frame, and the output end of the drive motor is fixedly connected to the worm gear. Both bearing seats are fixedly mounted on the top of the mounting frame and are arranged symmetrically from left to right. A horizontal shaft is mounted on the bearing seats, and a worm wheel is fixedly sleeved on the outer side of the middle part of the horizontal shaft. The worm wheel is located directly above the worm gear and the two mesh with each other. Circular blocks are fixedly connected to both ends of the horizontal shaft.

[0011] Preferably, the fixed connection point between the horizontal axis and the circular block is located at the outer edge of the circular block away from the center of the circular block, and the two circular blocks are staggered and symmetrical about the horizontal axis.

[0012] Preferably, a connecting frame is movably fitted on the outer side of each of the two circular blocks, and the two connecting frames are respectively fixedly installed on the top of the two vertical rods.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, starting the drive motor controls the worm gear to rotate, which in turn drives the horizontal shaft and two circular blocks to rotate synchronously via the worm wheel. The two circular blocks are eccentrically positioned at both ends of the horizontal shaft and are staggered and symmetrically arranged. Therefore, during the synchronous rotation of the two circular blocks, they can squeeze and push the two connecting frames to drive the two sets of side clamping mechanisms to slide back and forth synchronously and rapidly in opposite directions, thereby achieving a fast and high-frequency kneading effect. The bamboo chopsticks are arranged in rows quickly, which helps to improve the speed and efficiency of defective product screening.

[0014] After screening substandard bamboo chopsticks of unacceptable thickness, this invention restores the baffle to a horizontal position and activates the third electric telescopic rod to control the top clamping plate to move vertically downward. The baffle and top clamping plate clamp the rows of bamboo chopsticks between the two side clamping plates, pressing them tightly together. Then, the side clamping plates are released, and the bamboo chopsticks with missing lengths or other defects fall over, making it easier to screen out substandard bamboo chopsticks with length defects. This results in more thorough screening of substandard products, making the device more practical and improving the screening effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows: Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a three-dimensional upward view of the structure of this utility model; Figure 3 This is a three-dimensional top view of the structure of this utility model; Figure 4 This is a schematic diagram of the overall structure of the side clamping mechanism of this utility model; Figure 5 This is a top view of the overall structure of the drive mechanism of this utility model; Figure 6 This is a side view of the circular block and connecting frame of this utility model.

[0016] In the picture: 1. Operating table; 2. Placement slot; 3. Collection box; 4. Baffle; 5. First electric telescopic rod; 6. Slide rail; 7. Slider; 8. Support plate; 9. Vertical rod; 10. Second electric telescopic rod; 11. Side clamp plate; 12. Mounting bracket; 13. Through slot; 14. Limiting rod; 15. Third electric telescopic rod; 16. Top clamp plate; 17. Drive motor; 18. Worm gear; 19. Bearing seat; 20. Horizontal shaft; 21. Worm wheel; 22. Round block; 23. Connecting frame; 24. Controller. Detailed Implementation

[0017] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings: like Figure 1-6 As shown in one example, the present invention provides a defective product screening device for the production of bamboo chopsticks, comprising: The workbench includes an operating table 1 and a mounting bracket 12 fixedly installed above the operating table 1. A placement groove 2 extending along its width direction is provided at the top center of the operating table 1, and a collection box 3 is placed on the bottom inner side of the operating table 1. The material blocking mechanism includes a baffle 4 hinged to the bottom surface of the operating table 1, and a first electric telescopic rod 5 hinged to the inner wall of the left side of the operating table 1. The telescopic end of the first electric telescopic rod 5 is hinged to the bottom surface of the baffle 4. The length and width of the baffle 4 are both greater than the length and width of the placement groove 2. Two slide rails 6 are fixed to the upper surface of the operating table 1 and are arranged symmetrically about the placement slot 2. Each slide rail 6 is equipped with a slider 7, and a side clamping mechanism is installed above the slider 7. The drive mechanism and controller 24 are provided. The drive mechanism is located on the top of the mounting bracket 12. The two sets of side clamping mechanisms are linked by the drive mechanism and their sliding directions are always opposite to each other. The controller 24 is fixedly installed on the front right side of the mounting bracket 12.

[0018] As a preferred embodiment, based on the above structure, the side clamping mechanism further includes a support plate 8, a vertical rod 9, a second electric telescopic rod 10, and a side clamping plate 11. The support plate 8 is fixed to the top of the slider 7. The vertical rod 9 is fixed to the middle of the top of the support plate 8. The second electric telescopic rod 10 is fixedly installed in the middle of the support plate 8. The telescopic end of the second electric telescopic rod 10 is fixedly connected to the side clamping plate 11.

[0019] In this embodiment, the side clamping plate 11 is controlled to move horizontally by activating the second electric telescopic rod 10. The two side clamping plates 11 slide synchronously and move closer to each other, which facilitates the clamping of bamboo chopsticks.

[0020] As a preferred embodiment, based on the above structure, the top of the mounting bracket 12 is further provided with through grooves 13 symmetrically arranged on the left and right sides. Limiting rods 14 are fixed in both through grooves 13. The top ends of the two vertical rods 9 are respectively guided and slidably located in the two through grooves 13 and slidably sleeved on the outside of the corresponding limiting rods 14.

[0021] In this embodiment, the limiting rod 14 in the through groove 13 can improve the stability of the clamping mechanism during the sliding process.

[0022] As a preferred embodiment, based on the above structure, it further includes a top clamping mechanism, which includes two third electric telescopic rods 15 and a top clamping plate 16. The two third electric telescopic rods 15 are fixed to the top of the mounting frame 12 and are arranged symmetrically front and back. The top clamping plate 16 is located below the top of the mounting frame 12. The telescopic ends of the two third electric telescopic rods 15 are respectively fixedly connected to the upper surfaces of the front and rear ends of the top clamping plate 16.

[0023] In this embodiment, the top clamping plate 16 is vertically moved downward by activating the third electric telescopic rod 15, which facilitates cooperation with the baffle 4 to press the bamboo chopsticks in rows together, making it easier to screen out defective bamboo chopsticks with length defects.

[0024] In a preferred embodiment, based on the above structure, the drive mechanism further includes a drive motor 17, a worm gear 18, a bearing housing 19, a horizontal shaft 20, a worm wheel 21, and a circular block 22. The drive motor 17 is fixedly mounted on the top of the mounting frame 12, and the output end of the drive motor 17 is fixedly connected to the worm gear 18. Both bearing housings 19 are fixedly mounted on the top of the mounting frame 12 and are arranged symmetrically from left to right. The horizontal shaft 20 is mounted on the bearing housing 19. The worm wheel 21 is fixedly sleeved on the outer side of the middle part of the horizontal shaft 20. The worm wheel 21 is located directly above the worm gear 18 and the two mesh with each other. Circular blocks 22 are fixedly connected to both the left and right ends of the horizontal shaft 20.

[0025] As a preferred embodiment, based on the above structure, the fixed connection point between the horizontal axis 20 and the circular block 22 is located at the outer edge position away from the center of the circular block 22, and the two circular blocks 22 are staggered symmetrical about the horizontal axis 20.

[0026] As a preferred embodiment, based on the above structure, a connecting frame 23 is movably fitted on the outer side of each of the two circular blocks 22, and the two connecting frames 23 are respectively fixedly installed on the top of the two vertical rods 9.

[0027] In this embodiment, starting the drive motor 17 controls the worm gear 18 to rotate, which in turn controls the horizontal shaft 20 and the circular blocks 22 to rotate synchronously via the worm wheel 21. Since the two circular blocks 22 are eccentric at both ends of the horizontal shaft 20 and are misaligned and symmetrical, when the two circular blocks 22 rotate, they can squeeze and push the two connecting frames 23 to drive the two sets of side clamping mechanisms to slide back and forth synchronously and quickly in opposite directions, thereby achieving rapid and high-frequency kneading and arranging the bamboo chopsticks in rows quickly.

[0028] The working principle of this utility model is as follows: In use, first grasp a handful of bamboo chopsticks and place the bottom of the chopsticks in the slot 2 at the top center of the operating table 1, while simultaneously contacting the upper surface of the baffle 4. Then, activate the two second electric telescopic rods 10 on the left and right to extend, controlling the two side clamps 11 to slide synchronously and move closer to each other, clamping the bundle of bamboo chopsticks. At the same time, start the drive motor 17 to control the worm gear 18 to rotate, and use the worm wheel 21 to control the horizontal shaft 20 to drive the two circular blocks 22 on the left and right to rotate synchronously and rapidly. Since the two circular blocks 22 are eccentric at both ends of the horizontal shaft 20 and are symmetrically staggered, the rotation of the two circular blocks 22 can simultaneously squeeze and push the two connecting frames 23, which will drive the two sets of The side clamping mechanism slides back and forth synchronously and quickly in opposite directions, thereby achieving a fast and high-frequency kneading effect. The bamboo chopsticks are arranged in rows quickly, which helps to improve the speed and efficiency of defective product screening. Moreover, the equipment operates stably and has high reliability. At the same time, the slide rail 6 and the limit rod 14 can improve the stability of the sliding of the slider 7 and the side clamping mechanism. Then, the first electric telescopic rod 5 is activated to retract, which can pull the baffle 4 to rotate clockwise to the vertical position, so that the placement slot 2 is opened. At this time, the smaller bamboo chopsticks cannot be held because they are not clamped and will fall into the collection box 3, thus completing the selection of defective bamboo chopsticks with unqualified thickness. After the defective bamboo chopsticks of unqualified thickness are screened out, the first electric telescopic rod 5 is extended to restore the baffle 4. Then the third electric telescopic rod 15 is activated to control the top clamping plate 16 to move vertically downward. The baffle 4 and the top clamping plate 16 work together to clamp the rows of bamboo chopsticks between the two side clamping plates 11. Then the second electric telescopic rod 10 is retracted to release the side clamping plates 11. At this time, the bamboo chopsticks with missing length or unqualified length can no longer be clamped and fall down, which makes it easy to screen out the defective bamboo chopsticks with length defects. In summary, this device can screen out substandard bamboo chopsticks that do not meet the requirements for length and thickness, resulting in more thorough and faster screening. The device is also more practical. Furthermore, this device is powered by an external power source, and existing synchronization controllers are installed between the two second electric telescopic rods 10 and the two third electric telescopic rods 15 to ensure synchronized extension and retraction between the two electric telescopic rods. Simultaneously, the first electric telescopic rod 5, the second electric telescopic rod 10, the third electric telescopic rod 15, and the drive motor 17 are all electrically connected to the controller 24 and are all existing electrical components. The specific control methods utilize mature existing technologies and are not the focus of innovation in this case; therefore, they will not be described in detail.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A defective product screening device for bamboo chopsticks production, characterized in that, include: The workbench includes an operating table (1) and a mounting bracket (12) fixedly installed above the operating table (1). A placement groove (2) extending along its width direction is provided at the top center of the operating table (1). A collection box (3) is placed on the bottom inner side of the operating table (1). The material blocking mechanism includes a baffle (4) hinged to the bottom end face of the operating table (1) and a first electric telescopic rod (5) hinged to the inner wall of the left side of the operating table (1). The telescopic end of the first electric telescopic rod (5) is hinged to the bottom end face of the baffle (4). The length and width of the baffle (4) are both greater than the length and width of the placement groove (2). Two slide rails (6) are fixed to the upper surface of the operating table (1) and are arranged symmetrically about the placement slot (2). Slider (7) is slidably provided on both slide rails (6), and a side clamping mechanism is installed above the slider (7). The drive mechanism and controller (24) are located on the top of the mounting frame (12). The two sets of side clamping mechanisms are linked by the drive mechanism and their sliding directions are always opposite to each other. The controller (24) is fixedly installed on the right front of the mounting frame (12).

2. The defective product screening device for bamboo chopsticks production according to claim 1, characterized in that: The side clamping mechanism includes a support plate (8), a vertical rod (9), a second electric telescopic rod (10), and a side clamping plate (11). The support plate (8) is fixed to the top of the slider (7). The vertical rod (9) is fixed to the middle of the top of the support plate (8). The second electric telescopic rod (10) is fixedly installed in the middle of the support plate (8). The telescopic end of the second electric telescopic rod (10) is fixedly connected to the side clamping plate (11).

3. The defective product screening device for bamboo chopsticks production according to claim 2, characterized in that: The top of the mounting bracket (12) is provided with through slots (13) symmetrically arranged on the left and right. Limiting rods (14) are fixed in both through slots (13). The top ends of the two vertical rods (9) are respectively guided to slide in the two through slots (13) and slidably sleeved on the outside of the corresponding limiting rods (14).

4. The defective product screening device for bamboo chopsticks production according to claim 1, characterized in that: It also includes a top clamping mechanism, which includes two third electric telescopic rods (15) and a top clamping plate (16). The two third electric telescopic rods (15) are fixed on the top of the mounting frame (12) and are arranged symmetrically in front and behind. The top clamping plate (16) is located below the top of the mounting frame (12). The telescopic ends of the two third electric telescopic rods (15) are respectively fixedly connected to the upper surfaces of the front and rear ends of the top clamping plate (16).

5. A defective product screening device for bamboo chopsticks production according to claim 3, characterized in that: The drive mechanism includes a drive motor (17), a worm (18), a bearing seat (19), a horizontal shaft (20), a worm wheel (21), and a circular block (22). The drive motor (17) is fixedly installed on the top of the mounting frame (12). The output end of the drive motor (17) is fixedly connected to the worm (18). The two bearing seats (19) are fixedly installed on the top of the mounting frame (12) and are arranged symmetrically on the left and right. The horizontal shaft (20) is mounted on the bearing seat (19). The worm wheel (21) is fixedly sleeved on the outer side of the middle part of the horizontal shaft (20). The worm wheel (21) is located directly above the worm (18) and the two mesh with each other. The left and right ends of the horizontal shaft (20) are fixedly connected to the circular block (22).

6. The defective product screening device for bamboo chopsticks production according to claim 5, characterized in that: The fixed connection point between the horizontal axis (20) and the circular block (22) is located at the outer edge of the circular block (22) away from the center of the circular block (22), and the two circular blocks (22) are staggered symmetrical about the horizontal axis (20).

7. A defective product screening device for bamboo chopsticks production according to claim 6, characterized in that: A connecting frame (23) is movably fitted on the outer side of each of the two circular blocks (22), and the two connecting frames (23) are respectively fixedly installed on the top of the two vertical rods (9).

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